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Finding the Fourth Proportional to 260.50, 390.70 and 96.07

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Solution

The fourth proportional to 260.50, 390.70 and 96.07 is: 144.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.50 : 390.70 = 96.07 : x
  2. Step 2: Convert to fraction form
    260.50/390.70 = 96.07/x
  3. Step 3: Cross multiply
    260.50x = 390.70 × 96.07
  4. Step 4: Simplify right side
    260.50x = 37,534.55
  5. Step 5: Solve for x
    x = 37,534.55/260.50
  6. Step 6: Final answer
    x = 144.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.